Answer this question truthfully
### Question: What causes Gynecomastia?
### Response: All men have both androgens and estrogens in fix levels. Androgens are hormones that create male characteristics, such as hair growth, muscle size, and a deep voice. Estrogens are hormones that create female characteristics. Changes in the levels of these hormones, or in how the body uses or responds to these hormones can cause enlarged breasts in men.
Infancy Puberty Aging Chronic liver disease Exposure to anabolic steroid hormones Exposure to estrogen (female hormone) Kidney failure and dialysis Lack (deficiency) of testosterone (male hormone) Marijuana use Hormone treatment for prostate cancer Radiation treatment of the testicles Side effects of some medications (ketoconazole, spironolactone, cimetidine etc) Overactive thyroid
Genetic defects Tumors
One-sided breast growth Firm or hard breast lump that feels like it is attached to the tissue Skin sore over the breast Bloody discharge from the nipple